721823840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{541}}^1$

素因数の和:856

約数の個数: 96

約数和(自身を含む): 1770128640

約数和(自身を除く): 1048304800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 269, 310, 496, 538, 541, 620, 992, 1076, 1082, 1240, 1345, 2152, 2164, 2480, 2690, 2705, 4304, 4328, 4960, 5380, 5410, 8339, 8608, 8656, 10760, 10820, 16678, 16771, 17312, 21520, 21640, 33356, 33542, 41695, 43040, 43280, 66712, 67084, 83390, 83855, 86560, 133424, 134168, 145529, 166780, 167710, 266848, 268336, 291058, 333560, 335420, 536672, 582116, 667120, 670840, 727645, 1164232, 1334240, 1341680, 1455290, 2328464, 2683360, 2910580, 4511399, 4656928, 5821160, 9022798, 11642320, 18045596, 22556995, 23284640, 36091192, 45113990, 72182384, 90227980, 144364768, 180455960, 360911920, 721823840]

約数ペア:

[(1, 721823840), (2, 360911920), (4, 180455960), (5, 144364768), (8, 90227980), (10, 72182384), (16, 45113990), (20, 36091192), (31, 23284640), (32, 22556995), (40, 18045596), (62, 11642320), (80, 9022798), (124, 5821160), (155, 4656928), (160, 4511399), (248, 2910580), (269, 2683360), (310, 2328464), (496, 1455290), (538, 1341680), (541, 1334240), (620, 1164232), (992, 727645), (1076, 670840), (1082, 667120), (1240, 582116), (1345, 536672), (2152, 335420), (2164, 333560), (2480, 291058), (2690, 268336), (2705, 266848), (4304, 167710), (4328, 166780), (4960, 145529), (5380, 134168), (5410, 133424), (8339, 86560), (8608, 83855), (8656, 83390), (10760, 67084), (10820, 66712), (16678, 43280), (16771, 43040), (17312, 41695), (21520, 33542), (21640, 33356)]